All of these Android GUI templates, kits and stencils have all been designed to not only help you maintain the Android Design Guidelines but also to fast-track the initial prototyping stage of your app. All of the templates are fully editable and, depending on the template, are available in all popular formats (.psd, .ai, .eps, .png and Omnigraffle formats).

Official Android 4.0 Stencils (PSD, PNG & Omnigraffle)

These stencils come from Androids official design guidelines and style guide, Android Design. The guide covers everything you would ever need to know about designing for Android, and is a must bookmark for any designer.

The stencils feature the rich typography, colors, interactive controls, and icons found throughout Android 4.0, along with phone and tablet outlines to frame your creations. Source files for icons and controls are also available.

Using the specs from Motorola's Xoom tablet, ZURB, created these extensive wireframing stencils, based on Android 3.0. that include templates for toolbars, keyboards, dialogue boxes, camera settings and some widgets (mail and calendar).

Designed by WebDesignShock, this huge Android GUI template package includes fully editable Photoshop files, original fonts and everything that you may need in order to customize your set according to your preferences.

The official Android icon download package includes icons that are scaled for various screen densities and suitable for use with the Holo Light and Holo Dark themes. The package also includes unstyled icons that you can modify to match your theme, plus source files.

Android 4.0 has introduced a new font family named Roboto, created specifically for the requirements of the UI and high-resolution screens. You can also download the Roboto @fontface package here: Roboto @fontface Package from Font Squirrel.